686711107 has 6 divisors (see below), whose sum is σ = 729482348. Its totient is φ = 646316064.

The previous prime is 686711059. The next prime is 686711117. The reversal of 686711107 is 701117686.

It is not a de Polignac number, because 686711107 - 2⁷ = 686710979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686711117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1187793 + ... + 1188370.

Almost surely, 2^686711107 is an apocalyptic number.

686711107 is a deficient number, since it is larger than the sum of its proper divisors (42771241).

686711107 is a wasteful number, since it uses less digits than its factorization.

686711107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376197 (or 2376180 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 686711107 is about 26205.1732869676. The cubic root of 686711107 is about 882.2493707359.

The spelling of 686711107 in words is "six hundred eighty-six million, seven hundred eleven thousand, one hundred seven".